Tetsuo Iwamura, president and chief executive officer of American Honda Motor, Co., Inc., introduces the Honda FCX Clarity hydrogen fuel cell vehicle during the LA Auto Show, Wednesday, Nov. 14, 2007. The Honda FCX Clarity, which will be available on a limited retail basis in Summer 2008, enables levels of performance previously unattainable in a fuel cell car. Photo/American Honda Motor Co. Inc.,/Susan Goldman, handout.